Id defiantly go the JZX100 over the R34, damn, I was about to buy one! I just got lazy and couldnt take the wait for one to come over..
Body parts would become hard to get for them I would imagine for quite a while, I just hope that interest in them picks up very soon..
And on the subject of them looking like a camry, Ive always thought the chaser series to look quite like the equivalent year almost camrys over there, the jzx90 can certainly look like some camry models as well. But hey, they are practically the camry for over there so theres no reason why they wouldnt copy the design for over here!